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HCP Sulfate Adjuster is a specialty liquid additive for chromium plating baths to increase the sulfate (SO 4) concentration. The exact level of sulfate required is critical and is determined by the recommended ratio with the chromic acid. Concentrated sulfuric acid is frequently used to increase the sulfate level, although it is not recommended. There are two significant problems with using concentrated sulfuric acid; A) It is extremely dangerous to handle safely, and B) It is very difficult to accurately measure the amount needed.

Concentrated sulfuric acid can cause severe burns to the skin and eyes. And, a violent exothermic reaction occurs whenever concentrated sulfuric acid is added to a solution. This reaction is even more violent when the solution is hot as it is with the 140 deg. F. plating bath. The solution can literally boil up in the operators face.

Even a small error in measurement can have a large effect on the concentration in the bath. As the SO 4 level is critical, an error in measurement will have significant detrimental impact on the plating quality. It is very easy to overshoot the sulfate level which causes significant difficulty. The use of HCP Sulfate Adjuster solves these problems.

Product Usage
HCP Sulfate Adjuster was developed to eliminate the problems associated with handling concentrated sulfuric acid. It is a very pure form of the reagent acid in order to avoid contamination problems. HCP Sulfate Adjuster is premeasured, and manufactured for a specific tank based on accurate analysis of the sulfate level. HCP Sulfate Adjuster should be used whenever the sulfate level needs to be increased. It is also used for make-up of a new bath in order to easily and safely arrive at the optimum level. HCP Sulfate Adjuster eliminates the problems associated with accurate measurement and violent exothermic reactions. It is a much safer and easier product to use.

This process uses industrial strength chemicals which must be handled carefully and in accordance with the directives provided in the individual MSDS forms. Read and understand the MSDS on all of these chemicals before handling or using. Ensure that all regulatory standards are followed and limit personal exposure as required for Cr(VI) and other chemicals by OSHA.

Avoid personal contact with these chemicals, avoid splashing and avoid breathing any fumes released during operation. Do not inhale any dust, mist or vapors from these chemicals. Do not allow these products to contact the skin or eyes. In case of contact, flush immediately with large amounts of fresh water and seek immediate medical attention. Wear protective clothing such as aprons, gloves, face masks and respirators. Be sure that adequate eyewashes and emergency showers are available nearby before handling or using any of these chemicals. Designated work clothing should be worn while using these chemicals and the worker(s) should thoroughly shower and change into fresh-clean street clothing before going home. Decontaminate all work clothing before reuse. The user is responsible for providing adequate work clothing, personal protection, limiting personal exposure and providing any required clean-up, decontamination as well as any needed medical attention.